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Supersymmetric Massive Gravity
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DOI：10.1007/JHEP10(2022)130.png)
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摘要
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We initiate a systematic study of the self-interactions of a massive spin-2 graviton consistent with up to N = 4 supersymmetry. Using a recently developed massive on-shell superspace formalism, we construct the most general set of cubic massive graviton amplitudes in a form with all supersymmetry and Lorentz invariance manifest. We find that for N >= 3 supersymmetry, the family of consistent interactions coincide with those of the ghost-free dRGT model. For N = 4 (maximal) supersymmetry there is a single consistent cubic interaction which coincides with the unique structure required for the absence of asymptotic superluminality. Additionally, we discuss the structure of interactions in the high-energy limit, connections to supersymmetric Galileons and the possibility of a supersymmetric massive double copy.
Keyword:
Extended Supersymmetry
Scattering Amplitudes
Supergravity Models
期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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